| 发明名称 |
STODFOT FOR EN MATNINGSBALK |
| 摘要 |
A drill crown guide (32) is axially drawn backwards relative to a support surface of the foot so that an intermediary space is formed between the guide and the rock. A rubber channel (34) conducts drilling spoil and rinsing water from the support foot. |
| 申请公布号 |
SE8406279(L) |
申请公布日期 |
1986.06.11 |
| 申请号 |
SE19840006279 |
申请日期 |
1984.12.10 |
| 申请人 |
ATLAS COPCO AB |
发明人 |
SCHORLING S H G |
| 分类号 |
(IPC1-7):E21C9/00;E21C7/08 |
主分类号 |
(IPC1-7):E21C9/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
